US3738066A - Device for grinding long undulation waves of railway rails - Google Patents

Device for grinding long undulation waves of railway rails Download PDF

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US3738066A
US3738066A US00131668A US3738066DA US3738066A US 3738066 A US3738066 A US 3738066A US 00131668 A US00131668 A US 00131668A US 3738066D A US3738066D A US 3738066DA US 3738066 A US3738066 A US 3738066A
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grinding
runner
rail
force
wheels
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R Panetti
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
    • E01B31/00—Working rails, sleepers, baseplates, or the like, in or on the line; Machines, tools, or auxiliary devices specially designed therefor
    • E01B31/02—Working rail or other metal track components on the spot
    • E01B31/12—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails
    • E01B31/17—Removing metal from rails, rail joints, or baseplates, e.g. for deburring welds, reconditioning worn rails by grinding

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  • a device for grinding long undulation waves of railway rails comprises a train of rotatable grinding wheels mounted on a rigid runner of a length greater than the longest undulation to be ground and oriented in the direction of the rail.
  • the runner is supported from a chassis rollable on the rails by means of a suspension such that the resultant of the driving force of the runner and of the force applying the grinding wheels against the rail passes substantially through the center of the active surface of the grinding wheels to avoid the development of a force tending to pivot the runner about a transverse axis.
  • the present invention provides for a train of grinding wheels mounted on a rigid runner, of a length greater than the longest undulation to be eliminated and extending in the direction of the rail and driven by a suspension to provide passage of the resultant of the driving force of the runner and of the force applying the grinding wheels against the rail through the center of the active surface of the grinding wheels.
  • the grinding may be effected in horizontal, vertical or inclined planes so as to be parallel to any one of the generatrix surfaces of the rail head.
  • a grinding vehicle may be fitted with several of these arrangements.
  • FIG. I is a side elevational view partly in section of a first embodiment forgrinding rails in a horizontal plane
  • FIG. 2 is an end view thereof partially in section
  • FIG. 3 is a plan view ofa detail of the grinding wheels of FIG. 1,
  • FIG. 4 is a side elevational view of a vehicle carrying second and third embodiments of a grinding means
  • FIG. 5 is a transverse sectional view through the third embodiment in FIG. 4,
  • FIG. 6 is a side elevational view of a particular arrangement of individually driven wheels applicable to the first embodiment
  • FIG. 7 is a top plan view of the arrangement in FIG.
  • FIGS. 8-10 are diagrammatic representations, of the force diagrams of the grinding apparatus with two further embodiments.
  • a runner formed by an elongate frame 1 rotatably supports four grinding wheels 2, 3, 4, 5.
  • the grinding wheels lie in a common plane, parallel to the longitudinal axis of the runner, itself oriented in the direction of the rail 6, over which it is suspended and advanced.
  • the support of the runner is such as to allow the run- .ner to oscillate, the axis of suspension of the runner passing through two trunnions 7 and 8, and being substantially in the-center of the horizontal active surface defined by the grinding wheels.
  • the trunnions 7 and 8 are supported at the ends of two stems 9 and 10, slidable in guides in the chassis ll of the vehicle transporting the runner.
  • the runner is free to travel up and down at will, but is advanced longitudinally along the rail under the power applied to the stems at the level of the trunnions 7 and 8.
  • FIG. 1 shows a long undulation on the rail surface, designated by 6 on evidently exaggerated scale as to its amplitude and it is evident that the length of the runner is greater than the undulation.
  • the grinding wheels are driven in rotation by a single motor 12 common to all the wheels, through gears 13, 14, 15 and 16 mounted on the shafts of respective grinding wheels 2, 3, 4 and 5.
  • Frame 1 and grinding wheels 2 to 5 can be raised and lowered to adjust the grinding pressure to values greater than or less than the weight of these elements, by pivotal connection of two jacks 17 and 18 between the ends of the frame l and the chassis 11.
  • FIG. 4 In the second embodiment at the left of FIG. 4 there is shown an arrangement identical to that previously described, except for the position of the wheels sup ported by the frame 19, suspended identically from the chassis20 of the vehicle.
  • the vehicle In FIG. 4, the vehicle is shown in entirety on the rail 21 to be worked.
  • the undulation to be corrected is not confined to the upper face of the rail head, but may extend over the lateral rounded part of the head, it is preferable to dispose, not only at least one grinding wheel to even off the top surface of the rail, but of grinding wheels for restoring the straightness of lateral rounded part of the rail head.
  • the third embodiment is shown at the right in FIG. 4 and in elevation in FIG. 5 and comprises a runner 26, extending parallel to the rail and supporting three grinding wheels 27, 28 and 29, disposed in a vertical plane for grinding the inner face of the rail head.
  • the grinding wheels 27, 28, 29 are driven, as in the case of the first embodiment, by a common motor 30 visible in FIG. 5.
  • the runner 26 can oscillate around a vertical median shaft 31, supported by a block 31'. adapted to be dis J placed horizontally in a direction grinding plane.
  • a jack 32 serves to displace the block 31' relative to perpendicular to the i the rail to adjust the pressure of the grinding wheels against the rail and thus, to determine the grinding pressure.
  • the suspension shaft 31 of the runner 26 is substantially in the grinding plane, to effect driving of the runner by a force in the grinding plane.
  • FIGS. 6 and 7 show a variation of the arrangement and driving of the grinding wheels in the case of grinding in horizontal plane.
  • the grinding wheels 33, 34, 35, 36, are supported by the frame 37 and are driven by individual motors 38, 39, 40 and 41.
  • the grinding wheels grind the rail 42, not by their face as in the previous embodiments, but by their peripheries.
  • the grinding wheels are vertical and form an angle with the longitudinal direction of the rail.
  • FIGS. 8 and 9 illustrate theoretically a suspension and the forces acting therein.
  • the grinding wheels 43 When operating, the grinding wheels 43 are subjected to a force R resisting their travel along the rail.
  • the force R must be overcome by the advancing force Ra pushing the wheel holding frame 44.
  • FIGS. 8 and 9 show that the identical result may be obtained, even when suspending the frame 44 at pivot 45, above the working plane.
  • F F it is indispensable to unbalance these forces as represented in the drawing where the jack F exerts greater force than jack F and in such a ratio that the resultant of the forces Ra and F and F passes substantially through the center of the active surface of the grinding wheels whereby to cancel any tendency of the frame to pivot fore and aft.
  • FIG. 10 Another embodiment based on a similar solution is shown in FIG. 10.
  • the frame 46 supporting the grinding wheels 47 is supported by a rigid connecting rod 48 supporting a part F, ofthe means for applying pressure ofthe wheels against the rail.
  • a second connecting rod is formed by a single jack 49 developing a force F 'lhese connecting rods are convergent, so that their developed forces intersect at point 0 located in the center of the active surface defined by the grinding wheels.
  • the jack or jacks can also be used for retracting the grinding wheels by raising the runners or frames when the device is out of service.
  • a rail repairing vehicle will, of course bear one device on each side, so as to simultaneously grind both rails of the travelled track.
  • Apparatus for grinding railway rails to remove long undulation waves therein comprising a rigid runner extending longitudinally of the rail to be ground and having a length greater than the longest undulation to be removed, rotatable grinding means supported in said runner and defining a grinding surface for contact with the rail to be ground, means for applying the grinding means with force against the rail and means for applying force to the runner to advance the runner along the rail, the means for applying the grinding wheels with force against the rail and the means for applying force to the runner being constructed and arranged to apply forces in given direction and magnitudes to cause the resultant of the force advancing the runner along the rail and the force applying the grinding means against the rail to pass substantially through the center of said grinding surface.
  • Apparatus as claimed in claim 1 comprising a chas sis supporting said runner for pivotal movement about an axis transverse of said rails, said resultant passing through said transverse axis and exerting zero moment about said transverse axis whereby the runner is not subjected to pivotal movement about said transverse axis by said resultant.
  • said grinding means comprises a wheel having opposite faces one of which constitutes at least a part of said grinding surface.
  • said grinding means comprises a wheel having a peripheral surface constituting at least a part of said grinding surface.
  • said rail has a head with horizontal and vertically inclined generatrix surfaces
  • said grinding means comprises a first plurality of grinding wheels with horizontal grinding surfaces and a second plurality of grinding wheels with grinding surfaces parallel to said vertically inclined generatrix surface of the rail head.
  • Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the runner to advance the same along the rail, the forces acting on the runner in the direction of the grinding surface and the force to advance the runner having a resultant which passes through the center of the grinding surface.
  • Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the'runner to advance the same along the rail, said means for advancing the runner along the rail comprising connecting rods attached to said runner at said spaced locations and converging towards a point located in the plane of said grinding surface substantially at the center of the grinding surface.
  • said means for applying the grinding means with force against the rails comprises a pair of jacks located fore and aft of the center of the grinding surface, said jacks being parallel to one another and developing unequal forces so that the resultant of the jack forces and the force to advance the runner on the rails passes through the center of the grinding surface.
  • Apparatus as claimed in claim 2 comprising a trunnion supporting the runner from the chassis about said transverse axis, said trunnion being located at the level of said grinding surface.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Road Paving Structures (AREA)
  • Traffic Control Systems (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

A device for grinding long undulation waves of railway rails, comprises a train of rotatable grinding wheels mounted on a rigid runner of a length greater than the longest undulation to be ground and oriented in the direction of the rail. The runner is supported from a chassis rollable on the rails by means of a suspension such that the resultant of the driving force of the runner and of the force applying the grinding wheels against the rail passes substantially through the center of the active surface of the grinding wheels to avoid the development of a force tending to pivot the runner about a transverse axis.

Description

Ilite States Patent [1 1 App1.N0.: 131,668
Panetti June 12, 1973 [54] DEVICE FOR GRINDING LONG FOREIGN PATENTS OR APPLICATIONS UNDULATION WAVES 0F RAILWAY RAILS 1,060,027 11/1953 France 51/178 [76] Inventor: Romolo Panetti, 24, Pare Chateau Banquet, Geneve, Swltzerla Primary Examiner-James L. Jones, Jr. [22] Filed; APR 6, 97 Attorney-Waters, Roditi, Schwartz and Nissen [57] ABSTRACT A device for grinding long undulation waves of railway rails, comprises a train of rotatable grinding wheels mounted on a rigid runner of a length greater than the longest undulation to be ground and oriented in the direction of the rail. The runner is supported from a chassis rollable on the rails by means of a suspension such that the resultant of the driving force of the runner and of the force applying the grinding wheels against the rail passes substantially through the center of the active surface of the grinding wheels to avoid the development of a force tending to pivot the runner about a transverse axis.
13 Claims, 10 Drawing Figures DEVICE FOR GRINDING LONG UNDULATION WAVES OF RAILWAY RAILS BRIEF SUMMARY OF THE INVENTION The invention relates to apparatus for grinding railway rails.
In consequence of continuous wear and tear, the rails of railway tracks do not remain rectilinear, but show undulation waves of various lengths. These irregularities are removed by grinding the rails. However long waves in the range of one meter in length present certain problems.
To this effect, use has been made of individual trains of rotary grinding wheels which correct very well, undulations of a length smaller than the diameter of the grinding wheel, but which tend to follow the undulations of greater length.
An improvement has been brought about by the use of compensating devices with varying rates. These devices which redress about 70 percent of the undulation amplitude do not allow, due to their elasticity, to eliminate them completely.
The increase of the speed of trains requires still better correction of these undulations for reasons of comfort and security.
In order to eliminate these undulations, the present invention provides for a train of grinding wheels mounted on a rigid runner, of a length greater than the longest undulation to be eliminated and extending in the direction of the rail and driven by a suspension to provide passage of the resultant of the driving force of the runner and of the force applying the grinding wheels against the rail through the center of the active surface of the grinding wheels.
This latter condition prevents fore and aft oscillation of the runner into the hollows of the long undulations.
The grinding may be effected in horizontal, vertical or inclined planes so as to be parallel to any one of the generatrix surfaces of the rail head.
A grinding vehicle may be fitted with several of these arrangements.
BRIEF DESCRIPTION OF THE DRAWING:
FIG. I is a side elevational view partly in section of a first embodiment forgrinding rails in a horizontal plane,
FIG. 2 is an end view thereof partially in section,
FIG. 3 is a plan view ofa detail of the grinding wheels of FIG. 1,
FIG. 4 is a side elevational view of a vehicle carrying second and third embodiments of a grinding means,
FIG. 5 is a transverse sectional view through the third embodiment in FIG. 4,
FIG. 6 is a side elevational view of a particular arrangement of individually driven wheels applicable to the first embodiment,
FIG. 7 is a top plan view of the arrangement in FIG.
FIGS. 8-10 are diagrammatic representations, of the force diagrams of the grinding apparatus with two further embodiments.
DETAILED DESCRIPTION In the first embodiment, according to FIGS. 1 to 3, of a grinding apparatus for grinding a rail in horizontal plane, a runner formed by an elongate frame 1 rotatably supports four grinding wheels 2, 3, 4, 5.
The grinding wheels lie in a common plane, parallel to the longitudinal axis of the runner, itself oriented in the direction of the rail 6, over which it is suspended and advanced.
The support of the runner is such as to allow the run- .ner to oscillate, the axis of suspension of the runner passing through two trunnions 7 and 8, and being substantially in the-center of the horizontal active surface defined by the grinding wheels. The trunnions 7 and 8 are supported at the ends of two stems 9 and 10, slidable in guides in the chassis ll of the vehicle transporting the runner. Thus, the runner is free to travel up and down at will, but is advanced longitudinally along the rail under the power applied to the stems at the level of the trunnions 7 and 8.
FIG. 1 shows a long undulation on the rail surface, designated by 6 on evidently exaggerated scale as to its amplitude and it is evident that the length of the runner is greater than the undulation.
The combination of factors that the length of the runner is greater than the undulation and that driving of the runner is effected through the center of the active surface of the grinding wheels prevents the runner from descending into the undulations as the runner is driven over the rail surface.
The grinding wheels are driven in rotation by a single motor 12 common to all the wheels, through gears 13, 14, 15 and 16 mounted on the shafts of respective grinding wheels 2, 3, 4 and 5.
An advantage resulting from this arrangement is that the direction of rotation of adjacent grinding wheels are reversed as shown in FIG. 3 to prevent any development of lateral forces tending to move the frame 1 laterally outside the profile of the rails.
Frame 1 and grinding wheels 2 to 5 can be raised and lowered to adjust the grinding pressure to values greater than or less than the weight of these elements, by pivotal connection of two jacks 17 and 18 between the ends of the frame l and the chassis 11.
In the second embodiment at the left of FIG. 4 there is shown an arrangement identical to that previously described, except for the position of the wheels sup ported by the frame 19, suspended identically from the chassis20 of the vehicle. In FIG. 4, the vehicle is shown in entirety on the rail 21 to be worked.
As the undulation to be corrected is not confined to the upper face of the rail head, but may extend over the lateral rounded part of the head, it is preferable to dispose, not only at least one grinding wheel to even off the top surface of the rail, but of grinding wheels for restoring the straightness of lateral rounded part of the rail head.
Thus in this second embodiment, there is a grinding wheel 22 at the upper horizontal face of the rail and three grinding wheels 23, 24, 25 slightly inclined to the horizontal for grinding the grounded part of the rail head.
The third embodiment is shown at the right in FIG. 4 and in elevation in FIG. 5 and comprises a runner 26, extending parallel to the rail and supporting three grinding wheels 27, 28 and 29, disposed in a vertical plane for grinding the inner face of the rail head.
The grinding wheels 27, 28, 29 are driven, as in the case of the first embodiment, by a common motor 30 visible in FIG. 5.
The runner 26 can oscillate around a vertical median shaft 31, supported by a block 31'. adapted to be dis J placed horizontally in a direction grinding plane. Y
A jack 32 serves to displace the block 31' relative to perpendicular to the i the rail to adjust the pressure of the grinding wheels against the rail and thus, to determine the grinding pressure.
As appears in the arrangement of FIG. 5, the suspension shaft 31 of the runner 26 is substantially in the grinding plane, to effect driving of the runner by a force in the grinding plane.
FIGS. 6 and 7 show a variation of the arrangement and driving of the grinding wheels in the case of grinding in horizontal plane.
The grinding wheels 33, 34, 35, 36, are supported by the frame 37 and are driven by individual motors 38, 39, 40 and 41. The grinding wheels grind the rail 42, not by their face as in the previous embodiments, but by their peripheries. The grinding wheels are vertical and form an angle with the longitudinal direction of the rail.
The suspension of the frame, motors and grinding wheels and the adjustment of the working pressure are not described in detail, as they are identical to the arrangement in the first embodiment in FIGS. 1 and 2. On the other hand, it is advisable, similar to that shown in FIG. 3, to allow adjacent wheels 33-36 to rotate in opposite directions from each other, in order to offset forces tending to displace them laterally.
FIGS. 8 and 9 illustrate theoretically a suspension and the forces acting therein.
When operating, the grinding wheels 43 are subjected to a force R resisting their travel along the rail. The force R must be overcome by the advancing force Ra pushing the wheel holding frame 44. The force F F exerted by the jacks, equilibrates the working pressure N (ignoring the weight of the assembly).
When Ra is coincident with R, in a vertical plane as in the described embodiments of the invention, the frame 44 would not tend to pivot, since it is not subjected to any torque.
FIGS. 8 and 9 show that the identical result may be obtained, even when suspending the frame 44 at pivot 45, above the working plane. In this case, and contrary to the foregoing solution, where, by reason of symmetry, F F it is indispensable to unbalance these forces as represented in the drawing where the jack F exerts greater force than jack F and in such a ratio that the resultant of the forces Ra and F and F passes substantially through the center of the active surface of the grinding wheels whereby to cancel any tendency of the frame to pivot fore and aft.
Another embodiment based on a similar solution is shown in FIG. 10.
Here, the frame 46 supporting the grinding wheels 47 is supported by a rigid connecting rod 48 supporting a part F, ofthe means for applying pressure ofthe wheels against the rail. A second connecting rod is formed by a single jack 49 developing a force F 'lhese connecting rods are convergent, so that their developed forces intersect at point 0 located in the center of the active surface defined by the grinding wheels.
It is evident that thejack or jacks can also be used for retracting the grinding wheels by raising the runners or frames when the device is out of service.
There is also provided a throttling of the feeding conduits of the jacks to serve as a means tending to damp their movements, so as to attenuate the vibrations which might be generated by the rotation of the wheels.
A rail repairing vehicle will, of course bear one device on each side, so as to simultaneously grind both rails of the travelled track.
What is claimed is:
1. Apparatus for grinding railway rails to remove long undulation waves therein, said apparatus comprising a rigid runner extending longitudinally of the rail to be ground and having a length greater than the longest undulation to be removed, rotatable grinding means supported in said runner and defining a grinding surface for contact with the rail to be ground, means for applying the grinding means with force against the rail and means for applying force to the runner to advance the runner along the rail, the means for applying the grinding wheels with force against the rail and the means for applying force to the runner being constructed and arranged to apply forces in given direction and magnitudes to cause the resultant of the force advancing the runner along the rail and the force applying the grinding means against the rail to pass substantially through the center of said grinding surface.
2. Apparatus as claimed in claim 1 comprising a chas sis supporting said runner for pivotal movement about an axis transverse of said rails, said resultant passing through said transverse axis and exerting zero moment about said transverse axis whereby the runner is not subjected to pivotal movement about said transverse axis by said resultant.
3. Apparatus as claimed in claim 1 wherein said rail has a head with generatrix surfaces and said grinding surface is parallel to one of said surfaces.
4. Apparatus as claimed in claim 1 wherein said grinding means comprises a wheel having opposite faces one of which constitutes at least a part of said grinding surface.
5. Apparatus as claimed in claim 1 wherein said grinding means comprises a wheel having a peripheral surface constituting at least a part of said grinding surface.
6. Apparatus as claimed in claim 1 wherein said grinding means comprises a plurality of successive grinding wheels, adjacent wheels rotating in opposite direction.
7. Apparatus as claimed in claim 1 wherein said rail has a head with horizontal and vertically inclined generatrix surfaces, and said grinding means comprises a first plurality of grinding wheels with horizontal grinding surfaces and a second plurality of grinding wheels with grinding surfaces parallel to said vertically inclined generatrix surface of the rail head.
8. Apparatus as claimed in claim 1 wherein said means for applying the grinding means with force against the rails comprises means for adjusting the magnitude of such force.
9. Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the runner to advance the same along the rail, the forces acting on the runner in the direction of the grinding surface and the force to advance the runner having a resultant which passes through the center of the grinding surface.
10. Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the'runner to advance the same along the rail, said means for advancing the runner along the rail comprising connecting rods attached to said runner at said spaced locations and converging towards a point located in the plane of said grinding surface substantially at the center of the grinding surface.
11. Apparatus as claimed in claim 1 wherein said grinding means comprises a plurality of grinding tation.
12. Apparatus as claimed in claim 1 wherein said means for applying the grinding means with force against the rails comprises a pair of jacks located fore and aft of the center of the grinding surface, said jacks being parallel to one another and developing unequal forces so that the resultant of the jack forces and the force to advance the runner on the rails passes through the center of the grinding surface.
13.. Apparatus as claimed in claim 2 comprising a trunnion supporting the runner from the chassis about said transverse axis, said trunnion being located at the level of said grinding surface.

Claims (13)

1. Apparatus for grinding railway rails to remove long undulation waves therein, said apparatus comprising a rigid runner extending longitudinally of the rail to be ground and having a length greater than the longest undulation to be removed, rotatable grinding means supported in said runner and defining a grinding surface for contact with the rail to be ground, means for applying the grinding means with force against the rail and means for applying force to the runner to advance the runner along the rail, the means for applying the grinding wheels with force against the rail and the means for applying force to the runner being constructed and arranged to apply forces in given direction and magnitudes to cause the resultant of the force advancing the runner along the rail and the force applying the grinding means against the rail to pass substantially through the center of saId grinding surface.
2. Apparatus as claimed in claim 1 comprising a chassis supporting said runner for pivotal movement about an axis transverse of said rails, said resultant passing through said transverse axis and exerting zero moment about said transverse axis whereby the runner is not subjected to pivotal movement about said transverse axis by said resultant.
3. Apparatus as claimed in claim 1 wherein said rail has a head with generatrix surfaces and said grinding surface is parallel to one of said surfaces.
4. Apparatus as claimed in claim 1 wherein said grinding means comprises a wheel having opposite faces one of which constitutes at least a part of said grinding surface.
5. Apparatus as claimed in claim 1 wherein said grinding means comprises a wheel having a peripheral surface constituting at least a part of said grinding surface.
6. Apparatus as claimed in claim 1 wherein said grinding means comprises a plurality of successive grinding wheels, adjacent wheels rotating in opposite direction.
7. Apparatus as claimed in claim 1 wherein said rail has a head with horizontal and vertically inclined generatrix surfaces, and said grinding means comprises a first plurality of grinding wheels with horizontal grinding surfaces and a second plurality of grinding wheels with grinding surfaces parallel to said vertically inclined generatrix surface of the rail head.
8. Apparatus as claimed in claim 1 wherein said means for applying the grinding means with force against the rails comprises means for adjusting the magnitude of such force.
9. Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the runner to advance the same along the rail, the forces acting on the runner in the direction of the grinding surface and the force to advance the runner having a resultant which passes through the center of the grinding surface.
10. Apparatus as claimed in claim 1 comprising a chassis rollably supported on said rail, said runner being pivotably supported from said chassis at a pair of spaced locations outside said grinding surface and located on opposite sides of the point at which force is applied to the runner to advance the same along the rail, said means for advancing the runner along the rail comprising connecting rods attached to said runner at said spaced locations and converging towards a point located in the plane of said grinding surface substantially at the center of the grinding surface.
11. Apparatus as claimed in claim 1 wherein said grinding means comprises a plurality of grinding wheels, and a single motor for driving said wheels in rotation.
12. Apparatus as claimed in claim 1 wherein said means for applying the grinding means with force against the rails comprises a pair of jacks located fore and aft of the center of the grinding surface, said jacks being parallel to one another and developing unequal forces so that the resultant of the jack forces and the force to advance the runner on the rails passes through the center of the grinding surface.
13. Apparatus as claimed in claim 2 comprising a trunnion supporting the runner from the chassis about said transverse axis, said trunnion being located at the level of said grinding surface.
US00131668A 1970-08-14 1971-04-06 Device for grinding long undulation waves of railway rails Expired - Lifetime US3738066A (en)

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CH1223570A CH529260A (en) 1970-08-14 1970-08-14 Method for grinding long wavy waves of railway rails and device for its implementation

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Cited By (24)

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Publication number Priority date Publication date Assignee Title
US3823455A (en) * 1972-11-09 1974-07-16 Racine Railroad Prod Inc Rail polishing machine
US3840968A (en) * 1973-03-05 1974-10-15 A Mason Hydraulic slip joint pipe puller
US3883323A (en) * 1974-09-06 1975-05-13 Lush E Cooley Welded railroad rail grinding apparatus
US3888052A (en) * 1972-06-08 1975-06-10 Speno International Relating to methods for grinding rails
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails
US4020599A (en) * 1975-05-21 1977-05-03 Speno International S.A. Abrading arrangement for a railway track
US4050196A (en) * 1975-12-01 1977-09-27 Franz Plasser Bahnbaumaschinen-Industrie-Gesellschaft M.B.H. Rail grinding machine
US4074468A (en) * 1975-01-13 1978-02-21 Romolo Panetti Apparatus for the continuous on-track truing of railway rails
US4115857A (en) * 1976-02-18 1978-09-19 Speno International S.A. Process and apparatus for on-track truing of the heads of rails of a railway
US4135332A (en) * 1975-12-01 1979-01-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Rail grinding machine
US4189873A (en) * 1975-02-25 1980-02-26 Speno International S.A. Machine for truing the bearing surface of the rails of a railroad track
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
US4294041A (en) * 1977-12-30 1981-10-13 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machines for removing surface irregularities from rail heads
US4309847A (en) * 1975-02-25 1982-01-12 Romolo Panetti Machine for truing the bearing surface of the rails of a railroad track
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4878318A (en) * 1980-01-09 1989-11-07 Speno International S.A. Railway track maintenance machine for the rectification of the head of the rail
US4920701A (en) * 1988-03-04 1990-05-01 Speno International S.A. Device for the reprofiling of the rails of a railway track
US4925147A (en) * 1987-10-17 1990-05-15 Potter David J Artist's easel
US4993193A (en) * 1989-03-02 1991-02-19 Speno International S.A. Railroad vehicle for reprofiling at least one rail of a railroad track
US5662472A (en) * 1995-08-18 1997-09-02 Dentsply Gmbh Hue and lightness identification system for dental products
CN105178122A (en) * 2015-10-12 2015-12-23 北京东顺博望石油设备有限公司 Abrasive belt type rail polishing equipment
US20170314210A1 (en) * 2014-07-29 2017-11-02 Maschinenfabrik Liezen Und Giesserei Ges.M.B.H. Rail vehicle having a device for finishing the running surface of track rails
CN107813198A (en) * 2017-10-23 2018-03-20 宁波市江北区伊人宝贸易有限公司 A kind of machining is with part sanding apparatus outside waveform
CN108972248A (en) * 2018-10-22 2018-12-11 莱州文胜机械科技有限公司 A kind of sanding machine

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CH614476A5 (en) * 1977-10-10 1979-11-30 Scheuchzer Auguste Les Fils D
EP0088197B1 (en) * 1982-03-10 1986-11-12 MATIX INDUSTRIES (Société Anonyme) Apparatus for reshaping tracks by continuous milling
ATE22949T1 (en) * 1983-05-17 1986-11-15 Scheuchzer Fils Auguste RAIL HEAD PROFILE RESTORATION MACHINE.
FR2557488B1 (en) * 1983-12-28 1987-07-10 Geismar Anc Ets L USED RAIL REPROFILING MACHINE
US4583893A (en) * 1984-05-08 1986-04-22 Matix Industries (Societe Anonyme) Reprofiling device for rails through continuous milling
DE4437585C1 (en) * 1994-10-20 1996-03-21 Pomikacsek Josef Method and device for machining the running surface of rails by peripheral grinding
AT512270B1 (en) * 2011-12-12 2014-08-15 Liezen Und Giesserei Gesmbh Maschf RAIL-PROCESSING DEVICE THROUGH CONTROLLED IMPROVEMENT OF THE MACHINING TOOLS
CN109610250A (en) * 2018-12-29 2019-04-12 中国铁建重工集团有限公司 Turnout for suspension type rail

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US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder
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US2197729A (en) * 1938-01-20 1940-04-16 Pennsylvania Railroad Co Track rail grinding apparatus
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US2035154A (en) * 1935-01-29 1936-03-24 Faries Robert Rail grinding machine
FR1060027A (en) * 1952-05-02 1954-03-30 Freins Jourdain Monneret Rail grinder pad
US3427758A (en) * 1965-08-17 1969-02-18 Elektro Thermit Gmbh Motorized grinding machine for grinding rails
US3358406A (en) * 1965-10-14 1967-12-19 Speno International Rail grinder

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888052A (en) * 1972-06-08 1975-06-10 Speno International Relating to methods for grinding rails
US3918215A (en) * 1972-08-31 1975-11-11 Fredy Scheuchzer Carriage for grinding undulations in railway track rails
US3823455A (en) * 1972-11-09 1974-07-16 Racine Railroad Prod Inc Rail polishing machine
US3840968A (en) * 1973-03-05 1974-10-15 A Mason Hydraulic slip joint pipe puller
US3883323A (en) * 1974-09-06 1975-05-13 Lush E Cooley Welded railroad rail grinding apparatus
US4074468A (en) * 1975-01-13 1978-02-21 Romolo Panetti Apparatus for the continuous on-track truing of railway rails
US4189873A (en) * 1975-02-25 1980-02-26 Speno International S.A. Machine for truing the bearing surface of the rails of a railroad track
US4309847A (en) * 1975-02-25 1982-01-12 Romolo Panetti Machine for truing the bearing surface of the rails of a railroad track
US4020599A (en) * 1975-05-21 1977-05-03 Speno International S.A. Abrading arrangement for a railway track
US4050196A (en) * 1975-12-01 1977-09-27 Franz Plasser Bahnbaumaschinen-Industrie-Gesellschaft M.B.H. Rail grinding machine
US4135332A (en) * 1975-12-01 1979-01-23 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Rail grinding machine
US4115857A (en) * 1976-02-18 1978-09-19 Speno International S.A. Process and apparatus for on-track truing of the heads of rails of a railway
US4295764A (en) * 1977-12-30 1981-10-20 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machine for removing surface irregularities from rail heads
US4294041A (en) * 1977-12-30 1981-10-13 Franz Plasser Bahnbaumaschinen-Industriegesellschaft M.B.H. Mobile machines for removing surface irregularities from rail heads
FR2446891A1 (en) * 1979-01-18 1980-08-14 Speno Rail Serv RAIL GRINDING APPARATUS
US4205494A (en) * 1979-01-18 1980-06-03 Speno Rail Services, Inc. Rail grinding apparatus
US4878318A (en) * 1980-01-09 1989-11-07 Speno International S.A. Railway track maintenance machine for the rectification of the head of the rail
US4583327A (en) * 1983-11-25 1986-04-22 Jackson Jordan, Inc. Rail grinding car
US4925147A (en) * 1987-10-17 1990-05-15 Potter David J Artist's easel
US4920701A (en) * 1988-03-04 1990-05-01 Speno International S.A. Device for the reprofiling of the rails of a railway track
US4993193A (en) * 1989-03-02 1991-02-19 Speno International S.A. Railroad vehicle for reprofiling at least one rail of a railroad track
US5662472A (en) * 1995-08-18 1997-09-02 Dentsply Gmbh Hue and lightness identification system for dental products
US20170314210A1 (en) * 2014-07-29 2017-11-02 Maschinenfabrik Liezen Und Giesserei Ges.M.B.H. Rail vehicle having a device for finishing the running surface of track rails
US10227733B2 (en) * 2014-07-29 2019-03-12 Maschinenfabrik Liezen Und Giesserei Ges.M.B.H. Rail vehicle having a device for finishing the running surface of track rails
CN105178122A (en) * 2015-10-12 2015-12-23 北京东顺博望石油设备有限公司 Abrasive belt type rail polishing equipment
CN107813198A (en) * 2017-10-23 2018-03-20 宁波市江北区伊人宝贸易有限公司 A kind of machining is with part sanding apparatus outside waveform
CN108972248A (en) * 2018-10-22 2018-12-11 莱州文胜机械科技有限公司 A kind of sanding machine

Also Published As

Publication number Publication date
CH529260A (en) 1972-10-15
DK147441C (en) 1985-02-18
FR2101381A5 (en) 1972-03-31
GB1360068A (en) 1974-07-17
JPS5122680B1 (en) 1976-07-12
DK147441B (en) 1984-08-06
DE2118209A1 (en) 1972-02-17
BE763667A (en) 1971-08-02
NO130326B (en) 1974-08-12
ZA714747B (en) 1972-07-26
SE370427B (en) 1974-10-14
ES389400A1 (en) 1973-06-16
CA939151A (en) 1974-01-01
DE2118209B2 (en) 1976-04-22
NL7111289A (en) 1972-02-16
AT312653B (en) 1974-01-10
DE2118209C3 (en) 1982-04-08
NL147210B (en) 1975-09-15

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